Hi all,

I have a very serious problem with installing a 3g modem huawei 660A pcmcia on a rb230.-
When I plug modem in a pcmcia slot I'm having random reboot before modem connect.
When I plug modem in a pci-pcmcia adapter slot the system hangs.

After probing with several linux kernels versions nothing changed, same behavior.

E660A needs 3,3v with 750mA. Maybe the problem?

Regards.
dblackbeer

Is this modem supported?

Yes

it works a very few minutes with a pci-pcmcia adapter d-link.

I worked out the first problem by uprading bios version: 1.3.7 to 1.3.8 and it worket by 2 hours. Now I have another very hard porblem:

I was connected to the modem for a 2 hours and then I rebooted system to test it. But after a minutes system hangs and all leds is blinking.
I rebooted and I get:

RouterBIOS-200 v1.3.8 MikroTik (tm) 2003-2005

RouterBIOS-200 v1.3.8 MikroTik (tm) 2003-2005

RouterBIOS-200 v1.3.8 MikroTik (tm) 2003-2005

RouterBIOS-200 v1.3.8 MikroTik (tm) 2003-2005

RouterBIOS-200 v1.3.8 MikroTik (tm) 2003-2005

RouterBIOS-200 v1.3.8 MikroTik (tm) 2003-2005

and so on.

And I can`t make downgrade bios.

What can I do now??

regards

This is a power supply problem. I have again original problem.

can anybody suggest something about rb230 random reboot with a 3g modem pcmcia?

What are you using to supply power to the RB230?

I have been tried with:

48 VCC Output 0.5 A
24 VCC Output 1.2 A
20 VCC Output 3.4 A
24 VCC Output 6 A

and nothing changed.

now I suspect that it's a signal problem.
because I moved to another location with best performance signal strenght and random reboot disapeared (after ugrade bios).
The situation is: modem 3g installed on a rb230 sometimes reboot with poor signal strenght.
Next step maybe I would get a aditional external antenna.

dblackbeer

what version of ROS do you have?try latest

I'm not using RouterOS. I've testing with a several linux ditributions with newest kernels.

Then why are you here?

this is a RouterOS forum, for RouterBOARD hardware specific issues either post in the RouterBOARD section, or email your supplier for support.